Welcome to the Winobloggers webpage! Students and professors from different universities meet to discuss their findings on Winogradsky columns they constructed!
We learn how to formulate hypotheses, observe, comment, ask and reply to questions related to our scientific experiments.

Winogradksy columns

'In the field of observation, chance only favors the prepared mind' Pasteur 1854

Blog posts

Tuesday, 2 June 2015

Hello,Winogradsky column by S. Kokoroskou and S.
Kressou

Our samples were taken by Anauros (local
beach of Volos, Greece) during our university field trip. We already had
prepared the necessary tools:

üOne plastic bottle of 1.5l

üOne plastic bottle of 0.5l

üOne egg

üSome small paper pieces

ümilk

We went there and we followed specific
steps:

1.Gather some soil and make a
hole in the middle

2.Put the paper and the egg
inside, make a mixture

3.Put it inside the bottle (2/3
parts of the big bottle)

4.Also, some milk inside (about
50 to 100 ml)5.Finally, filled up with water

Then
we left it in a dark place and took some photos during the days of the
experiment.

1 day

image 1

15-20 day

After period of time and between the 15th and 20th day of our experiment the
statue of water has started to obtain a brown color (image 2,3). Due to FeS which is released from the anaerobic processes which are taking place inside the column.